(* Copyright (C) 2005:
 *	Stefano Zacchiroli     <zack@cs.unibo.it>
 * 	Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>
 *
 * This file is part of lablgtksourceview, the OCaml binding for the
 * GtkSourceView widget.
 * 
 * lablgtksourceview is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * lablgtksourceview is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with lablgtksourceview; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 * 
 * For details, send a mail to the authors.
 *)

open Gaux
open Gtk_sourceview
open Gobject
open Gtk
open GtkBase
open GtkSourceView
open OgtkSourceViewProps
open GObj

let get_bool = function `BOOL b -> b | _ -> assert false
let bool b = `BOOL b
let get_uint = function `INT i -> i | _ -> assert false
let uint i = `INT i
let get_int = function `INT i -> i | _ -> assert false
let int i = `INT i

(** {2 GtkSourceBuffer} *)

class source_buffer_signals obj_arg =
object
  inherit ['a] gobject_signals (obj_arg : [> Gtk_sourceview.source_buffer] obj)
  inherit GText.buffer_signals obj_arg
  inherit source_buffer_sigs
end

class source_buffer (obj: Gtk_sourceview.source_buffer obj) =
object (self)
  inherit GText.buffer_skel obj
  method connect = new source_buffer_signals obj
  method misc = new gobject_ops obj
  method check_brackets = get_bool (self#misc#get_property "check-brackets")
  method set_check_brackets x = self#misc#set_property "check-brackets" (bool x)
  method highlight = get_bool (self#misc#get_property "highlight")
  method set_highlight x = self#misc#set_property "highlight" (bool x)
  method max_undo_levels = get_int (self#misc#get_property "max-undo-levels")
  method set_max_undo_levels x =
    self#misc#set_property "max-undo-levels" (int x)
  method escape_char = get_uint (self#misc#get_property "escape-char")
  method set_escape_char x = self#misc#set_property "escape-char" (uint x)
  method can_undo = SourceBuffer.can_undo obj
  method can_redo = SourceBuffer.can_redo obj
  method undo () = SourceBuffer.undo obj
  method redo () = SourceBuffer.redo obj
  method begin_not_undoable_action () =
    SourceBuffer.begin_not_undoable_action obj
  method end_not_undoable_action () =
    SourceBuffer.end_not_undoable_action obj
end

let source_buffer =
  SourceBuffer.make_params [] ~cont:(fun pl () ->
    new source_buffer (SourceBuffer.create pl))

  (* alias used below, needed because "source_buffer" is a name in scope *)
let source_buffer' = source_buffer

(** {2 GtkSourceView} *)

class source_view_signals obj_arg =
object
  inherit widget_signals_impl (obj_arg : [> Gtk_sourceview.source_view] obj)
  inherit GText.view_signals obj_arg
  inherit source_view_sigs
end

class source_view (obj: Gtk_sourceview.source_view obj) =
object (self)
  inherit GText.view_skel obj
  method connect = new source_view_signals obj
  method set_show_line_numbers x =
    self#misc#set_property "show_line_numbers" (bool x)
  method show_line_numbers =
    get_bool (self#misc#get_property "show_line_numbers")
  method set_show_line_markers x =
    self#misc#set_property "show_line_markers" (bool x)
  method show_line_markers =
    get_bool (self#misc#get_property "show_line_markers")
  method set_tabs_width x = self#misc#set_property "tabs_width" (uint x)
  method tabs_width = get_uint (self#misc#get_property "tabs_width")
  method set_auto_indent x = self#misc#set_property "auto_indent" (bool x)
  method auto_indent = get_bool (self#misc#get_property "auto_indent")
  method set_insert_spaces_instead_of_tabs x =
    self#misc#set_property "insert_spaces_instead_of_tabs" (bool x)
  method insert_spaces_instead_of_tabs =
    get_bool (self#misc#get_property "insert_spaces_instead_of_tabs")
  method set_show_margin x = self#misc#set_property "show_margin" (bool x)
  method show_margin = get_bool (self#misc#get_property "show_margin")
  method set_margin x = self#misc#set_property "margin" (uint x)
  method margin = get_uint (self#misc#get_property "margin")
  method set_smart_home_end x = self#misc#set_property "smart_home_end" (bool x)
  method smart_home_end = get_bool (self#misc#get_property "smart_home_end")
end

let source_view ?source_buffer =
  SourceView.make_params [] ~cont:(
    GtkText.View.make_params ~cont:(
      GContainer.pack_container ~create:(fun pl ->
        let buf =
          match source_buffer with
          | None -> source_buffer' ()
          | Some source_buffer -> source_buffer
        in
        let obj = SourceView.create pl in
        GtkText.View.set_buffer obj buf#as_buffer;
        new source_view obj)))